<template>
    <div>
        <el-upload
            v-if="type === 'url'"
            :action="upload.url"
            :before-upload="handleBeforeUpload"
            :on-success="handleUploadSuccess"
            :on-error="handleUploadError"
            class="editor-img-uploader"
            name="file"
            :show-file-list="false"
            :headers="upload.headers"
        >
            <i ref="uploadRef"></i>
        </el-upload>
    </div>
    <div class="editor">
        <quill-editor
            ref="quillEditorRef"
            v-model:content="content"
            content-type="html"
            :options="options"
            :style="styles"
            @text-change="(e: any) => $emit('update:modelValue', content)"
        />
    </div>
</template>

<script setup lang="ts">
import '@vueup/vue-quill/dist/vue-quill.snow.css';
import { QuillEditor, Quill } from '@vueup/vue-quill';
import { globalHeaders, propTypes } from '@/utils/ruoyi';
import type { UploadOption } from '@/pages/system/system.d';

defineEmits(['update:modelValue']);

const props = defineProps({
    /* 编辑器的内容 */
    modelValue: propTypes.string,
    /* 高度 */
    height: propTypes.number.def(400),
    /* 最小高度 */
    minHeight: propTypes.number.def(400),
    /* 只读 */
    readOnly: propTypes.bool.def(false),
    /* 上传文件大小限制(MB) */
    fileSize: propTypes.number.def(5),
    /* 类型（base64格式、url格式） */
    type: propTypes.string.def('url')
});

const { proxy } = getCurrentInstance() as any;

const upload = reactive<UploadOption>({
    headers: globalHeaders(),
    // url: import.meta.env.VITE_APP_BASE_API + '/system/oss/upload'
    url: RUOYI_SERVICE_BASE_URL + '/system/oss/upload'
});
const quillEditorRef = ref();
const uploadRef = ref<HTMLDivElement>();

const options = ref<any>({
    theme: 'snow',
    bounds: document.body,
    debug: 'warn',
    modules: {
        // 工具栏配置
        toolbar: {
            container: [
                ['bold', 'italic', 'underline', 'strike'], // 加粗 斜体 下划线 删除线
                ['blockquote', 'code-block'], // 引用  代码块
                [{ list: 'ordered' }, { list: 'bullet' }], // 有序、无序列表
                [{ indent: '-1' }, { indent: '+1' }], // 缩进
                [{ size: ['small', false, 'large', 'huge'] }], // 字体大小
                [{ header: [1, 2, 3, 4, 5, 6, false] }], // 标题
                [{ color: [] }, { background: [] }], // 字体颜色、字体背景颜色
                [{ align: [] }], // 对齐方式
                ['clean'], // 清除文本格式
                ['link', 'image', 'video'] // 链接、图片、视频
            ],
            handlers: {
                image: (value: boolean) => {
                    if (value) {
                        // 调用element图片上传
                        uploadRef.value?.click();
                    } else {
                        Quill.format('image', true);
                    }
                }
            }
        }
    },
    placeholder: '请输入内容',
    readOnly: props.readOnly
});

const styles = computed(() => {
    let style: any = {};
    if (props.minHeight) {
        style.minHeight = `${props.minHeight}px`;
    }
    if (props.height) {
        style.height = `${props.height}px`;
    }
    return style;
});

const content = ref('');
watch(
    () => props.modelValue,
    (v: string) => {
        if (v !== content.value) {
            content.value = v || '<p></p>';
        }
    },
    { immediate: true }
);

// 图片上传成功返回图片地址
const handleUploadSuccess = (res: any) => {
    // 如果上传成功
    if (res.code === 200) {
        // 获取富文本实例
        let quill = toRaw(quillEditorRef.value).getQuill();
        // 获取光标位置
        let length = quill.selection.savedRange.index;
        // 插入图片，res为服务器返回的图片链接地址
        quill.insertEmbed(length, 'image', res.data.url);
        // 调整光标到最后
        quill.setSelection(length + 1);
        proxy?.$modal.closeLoading();
    } else {
        proxy?.$modal.msgError('图片插入失败');
        proxy?.$modal.closeLoading();
    }
};

// 图片上传前拦截
const handleBeforeUpload = (file: any) => {
    const type = ['image/jpeg', 'image/jpg', 'image/png', 'image/svg'];
    const isJPG = type.includes(file.type);
    //检验文件格式
    if (!isJPG) {
        proxy?.$modal.msgError(`图片格式错误!`);
        return false;
    }
    // 校检文件大小
    if (props.fileSize) {
        const isLt = file.size / 1024 / 1024 < props.fileSize;
        if (!isLt) {
            proxy?.$modal.msgError(`上传文件大小不能超过 ${props.fileSize} MB!`);
            return false;
        }
    }
    proxy?.$modal.loading('正在上传文件，请稍候...');
    return true;
};

// 图片失败拦截
const handleUploadError = (err: any) => {
    proxy?.$modal.msgError('上传文件失败');
};
</script>

<style>
.editor-img-uploader {
    display: none;
}
.editor,
.ql-toolbar {
    white-space: pre-wrap !important;
    line-height: normal !important;
}
.quill-img {
    display: none;
}
.ql-snow .ql-tooltip[data-mode='link']::before {
    content: '请输入链接地址:';
}
.ql-snow .ql-tooltip.ql-editing a.ql-action::after {
    border-right: 0;
    content: '保存';
    padding-right: 0;
}
.ql-snow .ql-tooltip[data-mode='video']::before {
    content: '请输入视频地址:';
}
.ql-snow .ql-picker.ql-size .ql-picker-label::before,
.ql-snow .ql-picker.ql-size .ql-picker-item::before {
    content: '14px';
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value='small']::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value='small']::before {
    content: '10px';
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value='large']::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value='large']::before {
    content: '18px';
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value='huge']::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value='huge']::before {
    content: '32px';
}
.ql-snow .ql-picker.ql-header .ql-picker-label::before,
.ql-snow .ql-picker.ql-header .ql-picker-item::before {
    content: '文本';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='1']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='1']::before {
    content: '标题1';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='2']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='2']::before {
    content: '标题2';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='3']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='3']::before {
    content: '标题3';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='4']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='4']::before {
    content: '标题4';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='5']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='5']::before {
    content: '标题5';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='6']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='6']::before {
    content: '标题6';
}
.ql-snow .ql-picker.ql-font .ql-picker-label::before,
.ql-snow .ql-picker.ql-font .ql-picker-item::before {
    content: '标准字体';
}
.ql-snow .ql-picker.ql-font .ql-picker-label[data-value='serif']::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value='serif']::before {
    content: '衬线字体';
}
.ql-snow .ql-picker.ql-font .ql-picker-label[data-value='monospace']::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value='monospace']::before {
    content: '等宽字体';
}
</style>
